A device that utilizes the playing of a functioning instrument, such as a piano for example purposes, to cause a paint brush or similar object, which is attached to the instrument, to draw or paint onto an art medium such as a canvas. The result is a drawing or painting that includes a visual representation of what was played, as the brush strokes are caused by the playing of the instrument. In one embodiment, a piano is modified by attaching paint brushes or a similar device to the opposite side of the hammers that strike the strings to create sound. The paint brushes are saturated in paint, and a canvas is held in front of the brushes. The keys are played, and the hammers propel forward and then backward. When the hammers of the keys/notes played are propelled backward the touch the canvas, adding paint to the canvas only in the locations where keys/notes are played. The result is a painting depicting the notes on canvas, creating a visual representation of the music on canvas. In another embodiment, other objects, such as pens or pencils, are attached to the piano hammers to create art on paper or canvas using mediums besides for paint. In other embodiments, the playing mechanisms of other musical instruments are utilized to paint onto canvas, or draw onto other mediums, where only the notes or keys being played cause a brush or similar object to strike a canvas or other mediums, thereby creating a visual representation of the music in art form. The device has use in artistic creation, and may have medical use in art therapy.

A device that utilizes the playing of a functioning instrument, such as a piano for example purposes, to cause a paint brush or similar object, which is attached to the instrument, to draw or paint onto an art medium such as a canvas. The result is a drawing or painting that includes a visual representation of what was played, as the brush strokes are caused by the playing of the instrument. In one embodiment, a piano is modified by attaching paint brushes or a similar device to the opposite side of the hammers that strike the strings to create sound. The paint brushes are saturated in paint, and a canvas is held in front of the brushes. The keys are played, and the hammers propel forward and then backward. When the hammers of the keys/notes played are propelled backward the touch the canvas, adding paint to the canvas only in the locations where keys/notes are played. The result is a painting depicting the notes on canvas, creating a visual representation of the music on canvas. In another embodiment, other objects, such as pens or pencils, are attached to the piano hammers to create art on paper or canvas using mediums besides for paint. In other embodiments, the playing mechanisms of other musical instruments are utilized to paint onto canvas, or draw onto other mediums, where only the notes or keys being played cause a brush or similar object to strike a canvas or other mediums, thereby creating a visual representation of the music in art form. The device has use in artistic creation, and may have medical use in art therapy.

A detection system includes a detectable member disposed on a movable member that is configured to be displaced in response to a user operation, and signal generating circuitry including a first coil configured to generate a magnetic field, the signal generating circuitry being configured to generate a detection signal dependent on a distance between the detectable member and the first coil, in which the detectable member includes a flexible base fixed to the movable member, and a second coil disposed on the flexible base.

A detection system includes a detectable member disposed on a movable member that is configured to be displaced in response to a user operation, and signal generating circuitry including a first coil configured to generate a magnetic field, the signal generating circuitry being configured to generate a detection signal dependent on a distance between the detectable member and the first coil, in which the detectable member includes a flexible base fixed to the movable member, and a second coil disposed on the flexible base.

A hybrid acoustic piano, specifically a piano the wires whereof are struck, of the type including a grouped wires, where of each group of three or of four wires associated with a key, one of these is tuned at a pitch different from the other two or three, which are tuned identically; and where the mechanism is such that when the pedal is in a resting state, that is, without depressing the pedal, on pressing the keys, the hammers strike at least two wires of the three or of the four wires of each group with the same tuning, and when the pedal is depressed, the mechanism displaces the hammers to the right and, on pressing the keys, three wires are struck, one of which is the wire tuned at a different pitch from the others.

A hybrid acoustic piano, specifically a piano the wires whereof are struck, of the type including a grouped wires, where of each group of three or of four wires associated with a key, one of these is tuned at a pitch different from the other two or three, which are tuned identically; and where the mechanism is such that when the pedal is in a resting state, that is, without depressing the pedal, on pressing the keys, the hammers strike at least two wires of the three or of the four wires of each group with the same tuning, and when the pedal is depressed, the mechanism displaces the hammers to the right and, on pressing the keys, three wires are struck, one of which is the wire tuned at a different pitch from the others.

A hammer assembly includes: a pivot member that pivots about a pivot axis; and a weight supported by the pivot member and including a plate portion. The plate portion has a first surface and a second surface opposite to the first surface. The plate portion has: a first region with a thickness defined by a length between the first surface and the second surface in a pivot-axis direction at a portion farthest from the pivot axis; and a second region with a thickness greater than that in the first region. In a case where the areas of the first region and the second region on a projected plane when the first region and the second region are viewed in the pivot-axis direction are compared with each other, the area of the first region is less than the area of the second region.

A hammer assembly includes: a pivot member that pivots about a pivot axis; and a weight supported by the pivot member and including a plate portion. The plate portion has a first surface and a second surface opposite to the first surface. The plate portion has: a first region with a thickness defined by a length between the first surface and the second surface in a pivot-axis direction at a portion farthest from the pivot axis; and a second region with a thickness greater than that in the first region. In a case where the areas of the first region and the second region on a projected plane when the first region and the second region are viewed in the pivot-axis direction are compared with each other, the area of the first region is less than the area of the second region.

A hammer device for a keyboard instrument includes a plurality of hammers. Each hammer has a hammer body extending in a front-rear direction and having a front half thereof pivotally supported and a rear half thereof formed with a weight mounting portion. A first weight common in shape and size to the hammers is attached to one of left and right side surfaces of the weight mounting portion. A second weight is attached to the other of the left and right side surfaces of the weight mounting portion. The first weight includes a stopper contact portion which protrudes at least either more upward or more downward than the second weight, and is brought into contact with a stopper in accordance with pivotal movement of the hammer caused by depression of a key associated therewith.

A hammer device for a keyboard instrument includes a plurality of hammers. Each hammer has a hammer body extending in a front-rear direction and having a front half thereof pivotally supported and a rear half thereof formed with a weight mounting portion. A first weight common in shape and size to the hammers is attached to one of left and right side surfaces of the weight mounting portion. A second weight is attached to the other of the left and right side surfaces of the weight mounting portion. The first weight includes a stopper contact portion which protrudes at least either more upward or more downward than the second weight, and is brought into contact with a stopper in accordance with pivotal movement of the hammer caused by depression of a key associated therewith.